Matt Helsley
83224b0837
container freezer: add TIF_FREEZE flag to all architectures
...
This patch series introduces a cgroup subsystem that utilizes the swsusp
freezer to freeze a group of tasks. It's immediately useful for batch job
management scripts. It should also be useful in the future for
implementing container checkpoint/restart.
The freezer subsystem in the container filesystem defines a cgroup file
named freezer.state. Reading freezer.state will return the current state
of the cgroup. Writing "FROZEN" to the state file will freeze all tasks
in the cgroup. Subsequently writing "RUNNING" will unfreeze the tasks in
the cgroup.
* Examples of usage :
# mkdir /containers/freezer
# mount -t cgroup -ofreezer freezer /containers
# mkdir /containers/0
# echo $some_pid > /containers/0/tasks
to get status of the freezer subsystem :
# cat /containers/0/freezer.state
RUNNING
to freeze all tasks in the container :
# echo FROZEN > /containers/0/freezer.state
# cat /containers/0/freezer.state
FREEZING
# cat /containers/0/freezer.state
FROZEN
to unfreeze all tasks in the container :
# echo RUNNING > /containers/0/freezer.state
# cat /containers/0/freezer.state
RUNNING
This patch:
The first step in making the refrigerator() available to all
architectures, even for those without power management.
The purpose of such a change is to be able to use the refrigerator() in a
new control group subsystem which will implement a control group freezer.
[akpm@linux-foundation.org: fix sparc]
Signed-off-by: Cedric Le Goater <clg@fr.ibm.com>
Signed-off-by: Matt Helsley <matthltc@us.ibm.com>
Acked-by: Pavel Machek <pavel@suse.cz>
Acked-by: Serge E. Hallyn <serue@us.ibm.com>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Nigel Cunningham <nigel@tuxonice.net>
Tested-by: Matt Helsley <matthltc@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-20 08:52:33 -07:00
..
a.out-core.h
aout: suppress A.OUT library support if !CONFIG_ARCH_SUPPORTS_AOUT
2008-02-08 09:22:30 -08:00
a.out.h
aout: move STACK_TOP[_MAX] to asm/processor.h
2008-02-08 09:22:29 -08:00
alternative-asm.h
x86: rename .i assembler includes to .h
2007-10-17 20:16:29 +02:00
alternative.h
[PATCH] x86: SMP alternatives
2006-03-23 07:38:04 -08:00
apic.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
archparam-i386.h
[PATCH] uml: s390 preparation, elf.h
2005-05-05 16:36:37 -07:00
archparam-ppc.h
[PATCH] uml: remove some leftover PPC code
2006-10-20 10:26:36 -07:00
archparam-x86_64.h
[PATCH] uml: s390 preparation, elf.h
2005-05-05 16:36:37 -07:00
asm.h
uml: add asm-um/asm.h
2008-01-30 13:31:17 +01:00
atomic.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
auxvec.h
[PATCH] auxiliary vector cleanups
2005-09-07 16:57:21 -07:00
bitops.h
forbid asm/bitops.h direct inclusion
2007-10-19 11:53:41 -07:00
boot.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
bug.h
uml: use generic BUG
2007-06-24 08:59:11 -07:00
bugs.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
byteorder.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
cache.h
Don't include linux/config.h from anywhere else in include/
2006-04-26 12:56:16 +01:00
cacheflush.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
calling.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
checksum.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
cmpxchg.h
x86: create asm/cmpxchg.h
2007-05-08 11:15:20 -07:00
cobalt.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
common.lds.S
uml: fix linker script alignment bugs
2007-08-31 01:42:22 -07:00
cpufeature.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
cputime.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
current.h
uml: current.h cleanup
2008-02-05 09:44:28 -08:00
delay.h
[PATCH] uml: fix unreasonably long udelay
2007-04-02 10:06:08 -07:00
desc.h
[PATCH] uml: implement {get,set}_thread_area for i386
2006-03-31 12:18:52 -08:00
device.h
Driver core: add dev_archdata to struct device
2006-12-01 14:52:01 -08:00
div64.h
rename div64_64 to div64_u64
2008-05-01 08:03:58 -07:00
dma-mapping.h
net: Fix build with ARCH=um
2008-09-19 12:44:54 -07:00
dma.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
dwarf2.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
elf-i386.h
[PATCH] remove unused ibcs2/PER_SVR4 in SET_PERSONALITY
2008-10-16 15:40:05 +02:00
elf-ppc.h
[PATCH] remove unused ibcs2/PER_SVR4 in SET_PERSONALITY
2008-10-16 15:40:05 +02:00
elf-x86_64.h
[PATCH] remove unused ibcs2/PER_SVR4 in SET_PERSONALITY
2008-10-16 15:40:05 +02:00
emergency-restart.h
[PATCH] Add emergency_restart()
2005-07-26 14:35:41 -07:00
errno.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
fcntl.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
fixmap.h
uml: runtime host VMSPLIT detection
2008-02-08 09:22:42 -08:00
floppy.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
frame.h
x86: rename .i assembler includes to .h
2007-10-17 20:16:29 +02:00
futex.h
[PATCH] consolidate asm/futex.h
2006-01-08 20:13:39 -08:00
hardirq.h
Don't include linux/config.h from anywhere else in include/
2006-04-26 12:56:16 +01:00
highmem.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
host_ldt-i386.h
[PATCH] uml: split ldt.h in arch-independent and arch-dependant code
2006-03-31 12:18:51 -08:00
host_ldt-x86_64.h
[PATCH] uml: split ldt.h in arch-independent and arch-dependant code
2006-03-31 12:18:51 -08:00
hw_irq.h
[PATCH] genirq: add ->retrigger() irq op to consolidate hw_irq_resend()
2006-06-29 10:26:23 -07:00
ide.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
io.h
[PATCH] uml: add __raw_writeq definition
2006-06-30 11:25:38 -07:00
ioctl.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
ioctls.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
ipcbuf.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
irq.h
uml: random driver fixes
2008-05-13 08:02:22 -07:00
irq_regs.h
[PATCH] um: irq changes break build
2006-10-06 08:53:42 -07:00
irq_vectors.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
irqflags.h
[PATCH] uml: add asm/irqflags.h
2006-06-05 12:29:17 -07:00
kdebug.h
move die notifier handling to common code
2007-05-08 11:15:04 -07:00
kmap_types.h
[PATCH] uml: make copy_*_user atomic
2006-07-01 09:56:03 -07:00
ldt.h
uml: LDT mutex conversion
2008-02-05 09:44:31 -08:00
linkage.h
uml: get rid of asmlinkage
2008-02-05 09:44:25 -08:00
local.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
locks.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
mca_dma.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
mman.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
mmu.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
mmu_context.h
uml: activate_mm: remove the dead PF_BORROWED_MM check
2008-06-06 11:36:22 -07:00
module-generic.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
module-i386.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
module-x86_64.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
msgbuf.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
mtrr.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
mutex.h
[PATCH] mutex subsystem, add default include/asm-*/mutex.h files
2006-01-09 15:59:19 -08:00
nops.h
git-x86: unbreak UML
2008-01-30 13:32:38 +01:00
page.h
arch/um/kernel/mem.c: remove arch_validate()
2008-07-24 10:47:24 -07:00
page_offset.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
param.h
asm-{alpha,h8300,um,v850,xtensa}/param.h: unbreak HZ for userspace
2008-05-14 19:11:14 -07:00
paravirt.h
uml: add asm/paravirt.h
2007-06-24 08:59:11 -07:00
pci.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
pda.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
percpu.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
pgalloc.h
CONFIG_HIGHPTE vs. sub-page page tables.
2008-02-08 09:22:42 -08:00
pgtable-2level.h
uml: 64-bit tlb fixes
2008-02-05 09:44:29 -08:00
pgtable-3level.h
uml: 64-bit tlb fixes
2008-02-05 09:44:29 -08:00
pgtable.h
mm: introduce pte_special pte bit
2008-04-28 08:58:23 -07:00
poll.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
posix_types.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
prctl.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
processor-generic.h
uml: runtime host VMSPLIT detection
2008-02-08 09:22:42 -08:00
processor-i386.h
uml: remove xmm checking on x86
2008-02-05 09:44:24 -08:00
processor-ppc.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
processor-x86_64.h
uml: x86_64 should copy %fs during fork
2008-02-08 09:22:43 -08:00
ptrace-generic.h
UML: make several more things static
2008-07-24 10:47:24 -07:00
ptrace-i386.h
uml: ptrace floating point fixes
2007-10-16 09:43:07 -07:00
ptrace-x86_64.h
uml: remove code made redundant by CHOOSE_MODE removal
2007-10-16 09:43:05 -07:00
required-features.h
uml: fix build breakage
2007-05-09 12:30:48 -07:00
resource.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
rwlock.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
rwsem.h
[PATCH] remove gcc-2 checks
2006-01-08 20:14:02 -08:00
scatterlist.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
sections.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
segment.h
[PATCH] uml: check for differences in host support
2006-03-31 12:18:52 -08:00
sembuf.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
serial.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
setup.h
[PATCH] uml: command line handling cleanup
2005-05-06 22:09:29 -07:00
shmbuf.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
shmparam.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
sigcontext-generic.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
sigcontext-i386.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
sigcontext-ppc.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
sigcontext-x86_64.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
siginfo.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
signal.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
smp.h
uml: fix inlines
2007-10-16 09:43:06 -07:00
socket.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
sockios.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
spinlock.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
spinlock_types.h
[PATCH] uml spinlock breakage
2005-09-10 16:50:01 -07:00
stat.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
statfs.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
string.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
suspend.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
system-generic.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
system-i386.h
[PATCH] uml: UML/i386 cmpxchg fix
2005-09-17 11:50:01 -07:00
system-ppc.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
system-x86_64.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
termbits.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
termios.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
thread_info.h
container freezer: add TIF_FREEZE flag to all architectures
2008-10-20 08:52:33 -07:00
timex.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
tlb.h
uml: compile error fix
2008-04-15 19:35:40 -07:00
tlbflush.h
remove unused flush_tlb_pgtables
2007-10-19 11:53:34 -07:00
topology.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
types.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
uaccess.h
uml: header untangling
2008-02-05 09:44:28 -08:00
ucontext.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
unaligned.h
kernel: Move arches to use common unaligned access
2008-04-29 08:06:27 -07:00
unistd.h
x86 merge fallout: uml
2007-10-29 07:41:32 -07:00
user.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
vga.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
vm-flags-i386.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
vm-flags-x86_64.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
vm86.h
[PATCH] uml: vm86 compile fix
2005-07-28 21:46:03 -07:00
xor.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00